Mid-range magnetic resonance wireless energy transfer system

A wireless energy transmission and magnetic resonance technology, applied in the field of wireless energy transmission, can solve the problems of low charging efficiency below 10%, limited charging distance, etc., and achieve the effect of reducing energy consumption, reducing energy storage links, and high efficiency

Inactive Publication Date: 2017-02-15
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the wireless charging adopts the electromagnetic induction method, but the electromagnetic induction wireless charging technology is used, and its charging distance

Method used

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  • Mid-range magnetic resonance wireless energy transfer system
  • Mid-range magnetic resonance wireless energy transfer system
  • Mid-range magnetic resonance wireless energy transfer system

Examples

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Embodiment Construction

[0024] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0025] Embodiments of the present invention relate to a wireless energy transmission system for mid-range magnetic resonance, such as figure 1 As shown, it includes a transmitting part and a receiving part. The transmitting part includes an electromagnetic resonance energy transmission transmitting coil. The electromagnetic resonance energy transmission transmitting coil generates an alternating magnetic field under the excita...

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Abstract

The invention relates to a mid-range magnetic resonance wireless energy transfer system, which comprises an emission portion and a reception portion. The emission portion comprises a magnetic resonance energy transfer transmitting coil. The magnetic resonance energy transfer transmitting coil is connected with an alternating current source. The alternating current source is used for generating a high-frequency alternating current. The magnetic resonance energy transfer transmitting coil generates an alternating magnetic field under excitation of the high-frequency alternating current. The reception portion comprises a magnetic resonance energy transfer receiving coil and a rectifying circuit, which are connected mutually. The magnetic resonance energy transfer receiving coil is used for receiving the alternating magnetic field generated by the magnetic resonance energy transfer transmitting coil and generating magnetic resonance accumulated energy; and the rectifying circuit is used for rectifying the accumulated energy and then, supplying the energy to a load. The magnetic resonance energy transfer transmitting coil and the magnetic resonance energy transfer receiving coil have the same resonant frequency. The system can improve transmission distance and transmission efficiency.

Description

technical field [0001] The invention relates to the technical field of wireless energy transmission, in particular to a wireless energy transmission system for mid-distance magnetic resonance. Background technique [0002] In June 2007, Marin Sohjacic of the Massachusetts Institute of Technology and his research team made a public demonstration, energized a coil with a diameter of 60cm, lit a 60w bulb connected to another coil about 2m away, and turned the The transmission efficiency was increased to 90%. This system utilizes the principle of resonance. When two objects vibrate at the same frequency, the strength of their energy transfer will not be affected by the surrounding objects. The magnetic resonance method can transmit charges in the air between the transducer and the device, and the coil and capacitor form a resonance between the transducer and the device to realize the technology of efficient transmission of electric energy. Electricity is only transferred betwe...

Claims

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Application Information

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IPC IPC(8): H02J50/12
Inventor 陈艳陈光于洋
Owner DONGHUA UNIV
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